113 lines
2.4 KiB
Nix
113 lines
2.4 KiB
Nix
# Zabbix agent daemon.
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{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.zabbixAgent;
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zabbix = cfg.package;
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stateDir = "/var/run/zabbix";
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logDir = "/var/log/zabbix";
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pidFile = "${stateDir}/zabbix_agentd.pid";
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configFile = pkgs.writeText "zabbix_agentd.conf"
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''
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Server = ${cfg.server}
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LogFile = ${logDir}/zabbix_agentd
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PidFile = ${pidFile}
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StartAgents = 1
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${config.services.zabbixAgent.extraConfig}
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'';
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in
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{
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###### interface
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options = {
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services.zabbixAgent = {
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enable = mkOption {
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default = false;
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description = ''
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Whether to run the Zabbix monitoring agent on this machine.
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It will send monitoring data to a Zabbix server.
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'';
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};
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package = mkOption {
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type = types.attrs; # Note: pkgs.zabbixXY isn't a derivation, but an attrset of { server = ...; agent = ...; }.
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default = pkgs.zabbix;
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defaultText = "pkgs.zabbix";
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example = literalExample "pkgs.zabbix34";
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description = ''
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The Zabbix package to use.
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'';
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};
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server = mkOption {
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default = "127.0.0.1";
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description = ''
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The IP address or hostname of the Zabbix server to connect to.
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'';
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};
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extraConfig = mkOption {
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default = "";
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type = types.lines;
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description = ''
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Configuration that is injected verbatim into the configuration file.
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'';
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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users.users = mkIf (!config.services.zabbixServer.enable) (singleton
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{ name = "zabbix";
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uid = config.ids.uids.zabbix;
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description = "Zabbix daemon user";
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});
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systemd.services."zabbix-agent" =
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{ description = "Zabbix Agent";
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wantedBy = [ "multi-user.target" ];
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path = [ pkgs.nettools ];
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preStart =
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''
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mkdir -m 0755 -p ${stateDir} ${logDir}
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chown zabbix ${stateDir} ${logDir}
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'';
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serviceConfig.ExecStart = "@${zabbix.agent}/sbin/zabbix_agentd zabbix_agentd --config ${configFile}";
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serviceConfig.Type = "forking";
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serviceConfig.RemainAfterExit = true;
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serviceConfig.Restart = "always";
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serviceConfig.RestartSec = 2;
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};
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environment.systemPackages = [ zabbix.agent ];
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};
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}
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